Organocatalytic vs. Ru-based electrochemical hydrogenation of nitrobenzene in competition with the hydrogen evolution reaction

Web of Science: 17 cites, Scopus: 17 cites, Google Scholar: cites,

(Universidad Autónoma de Madrid. Departamento de Química Inorgánica)
Creus, Jordi

(Universitat Autònoma de Barcelona. Departament de Química)
Romero Fernández, Nuria

(Universitat Autònoma de Barcelona. Departament de Química)
Aleman Lara, Jose Julian

(Universidad Autónoma de Madrid. Departamento de Química Orgánica)
Solans Monfort, Xavier

(Universitat Autònoma de Barcelona. Departament de Química)
Philippot, Karine

(Centre National de la Recherche Scientifique. Université de Toulouse. Laboratoire de Chimie de Coordination)
García-Antón, Jordi

(Universitat Autònoma de Barcelona. Departament de Química)
Sala Román, Xavier

(Universitat Autònoma de Barcelona. Departament de Química)
Mas Balleste, Ruben

(Universidad Autónoma de Madrid. Departamento de Química Inorgánica)

Data:	2020
Resum:	The electrochemical reduction of organic contaminants allows their removal from water. In this contribution, the electrocatalytic hydrogenation of nitrobenzene is studied using both oxidized carbon fibres and ruthenium nanoparticles supported on unmodified carbon fibres as catalysts. The two systems produce azoxynitrobenzene as the main product, while aniline is only observed in minor quantities. Although PhNO2 hydrogenation is the favoured reaction, the hydrogen evolution reaction (HER) competes in both systems under catalytic conditions. H2 formation occurs in larger amounts when using the Ru nanoparticle based catalyst. While similar reaction outputs were observed for both catalytic systems, DFT calculations revealed some significant differences related to distinct interactions between the catalytic material and the organic substrates or products, which could pave the way for the design of new catalytic materials.
Ajuts:	Ministerio de Economía y Competitividad CTQ2015-64261-R Agencia Estatal de Investigación CTQ2017-89132-P Agencia Estatal de Investigación RTI2018-095038-B-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1323
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Publicat a:	Dalton transactions, Vol. 49, Issue 19 (May 2020), p. 6446-6456, ISSN 1477-9234

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Registre creat el 2023-07-25, darrera modificació el 2023-09-08